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E. E. MILES.

STEAM HAMMER.

No. 288,840. Patented Nov. 20, 1883.

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P. B. MILES.

STEAM HAMMER.

No. 288,848. l Patented Nav. 28, 1888.

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Unire FREDERICK B. MILES, OF PHILADELPHIA, PEXNSYLVANIA.

STEAM-HAMMER.

SPECIFICATION forming part of Letters Patent No. 288,840, dated November 20, 1883.

Application filed July 2, 1883. (No model.)

.To @ZZ whom, it may concern:

Be it known that I, FREDERICK B. MILEs, a citizen of the United States, residing in Phila,- delphia, and State of Pennsylvania, have invented certain Improvements in Steam-Hainmers, of which the following is a specification.

My invention consists, mainly, of the combination of the standards and hammer-block of a steam-hammer, with guides for the said block, and transverse keys for setting up the guides, all substantially as described herein after.

In the accompanying drawings, Figure 1, Sheet l, is a front view, partly in section, of sufeient of a steam-hammer to illustrate my improvements; Fig. 2, a sectional plan on the line l 2, Fig. l; Fig. 3, a perspective view of one of the transverse adjusting-keys; Fig. 4, Sheet 2, a view of the inner edge of part of one of the standards and its guide; Fig. 5, a perspective view of one of the guides, and Fig. 6 a transverse section of the same.

Of the part of the steam-hammer shown in Figs. 1 and 2, A is the anvil, B the guided hammenblock, D the piston, and E E the opposite standards, which, as regards general shape, are similar to those of other steam-harnmers. The opposite parallel edges of the hammer-block have vertical V-shaped grooves, adapted to similarlyshaped ribs a on the guides G- G', the former of which is adjustably secured to the inner edge ofthe standard E and the guide G to the inner edge ofthe standard E.

Each guide fits in a recess inthe standard to. which it is secured; but between the standard and its guide are interposed two transverse taper keys, I I, one of which is shown in the perspective view, Fig. 3, on reference to which it will be observed that one side of the said key is dat and the other side rounded, the iiat side bearing against the rear face of the guide, and the rounded side being adapted to a concave groove or socket in the standard. Different appliances may be used for adjusting these keys. lIn Fig. 2 the adjustment of each key and the securing of the same afteradjustment are effected by two setscrews, p p', the former passing through a washer, q, on one side of the standard and into one end of the key, and the screw p passing through a washer,l q', on the opposite side of the standard and into the opposite end of the key. These washers are cupped, and thereby rendered more or less elastic, so that the jars to which the standards are subjected shall have no loosening influence on thesetscrews. By loosening the screw p and tightening the screw p the guide will be set up toward the. hammer-block, and after the desired adjustment has been effected the key may be firmly secured in place by tightening both screws. The guide is secured and caused to bear tightly against the keys by two bolts, F F', the nuts of which are contained in chambers w, formed in the guides, as shown in the perspective view, Fig. 5, the stems of the bolts passing through the standard, Fig.l l, against a projection on which the head of the bolt bears. A stud, K, having a T-shaped head, mi, is secured to and projects above the top of each guide, and is adapted to the l'shaped recess fv, Fig. 4l, in the standard, from which the guide is thus suspended, when the bolts are loosened preparatory to the adjustment of the keys.

The edges of hammer-blocks and the guides 'for the saine are apt to become worn, owing to the scales and gritty matter which gain access to them, and the lower portions of the edges ofthe block and guides wear away more rapidly than the upper portions; hence it becomes necessary to set up the lower end of the guide more than the upper end. For this reason I prefer keys with rounded backs, adapted to concave grooves in the standards, for no matter how much out 4of perpendicular the rear of the guide may be, owing to this differential adjustment, the iiat faces of the keys will always adjust themselves to the iiat rear faces of the guides.

I claim as my invention- 1. The combination of the standards, guides, and hammer-block of a steam-hammer, with transverse taper keys interposed between the guides and standards, and with bolts for binding the said guides to the keys, substantially as set forth.

2. The combination of taper keys, ilat on the front face and rounded at the back,with the guides of a steam-hammer, standards having IOO concave grooves for the backs of the keys, and ards having recesses adapted to thesaid studs, 1o

bolts for securing the guides, all substantially as specified. y 3. 'The combination of the guides, stand- 5 ards, and taper keys, With the set-screws p p and Washers q q for eachkey, substantially as described.

4. The combination of thc guides and the studs at the top of the saine7 with the standsubstantially as set forth.

In testimony whereof I have signed my name to this specication in the presence of tWo subscribing Witnesses.

FREDK. B. MILES.

Vitnesses:

HARRY L. AsnENFELTnR, HARRY SMITH. 

